Nah, the swap-add function is very quick to add/minus ships from scenarios. The hardest thing to get the hang of was how to alter the ship stats so you could have what-if units.
It will be once I've got the program up and running. DosBox is installed, I'm going to reformat the manual so I can print it out. I think I'll start out with a modded Java Sea to reflect the Allied OOB from "All The Drowning Seas" by Alexander Fullerton (Adds 1 D Class Cruiser & 1 Porter Class Destroyer to the historic line up.).
Then I'll have to work out modding the ship files, I have a modded Bismark (Check out the 'Hindenburg' in the List of Ships in Fiction thread.) to create.